1. Hydrogen Name: Hydrogen Atomic number: 1 Atomic Weight: 1.00794 grams/mole Standard state: gas at 198 K Hydrogen is the lightest Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up above 90% of Universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen is lightest gas. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because
Premium Metal Periodic table Chemical element
History of US 1 March 20‚ 2014 Professor Mohanty European exploration to the Americas had a very substantial affect‚ not only on their own culture‚ but also on the culture of the Native Americans. Many Native American tribes had to adapt and assimilate with the European explorers and settlers as their lives became increasingly disrupted and altered as settlement increased and flourished. The purpose of this paper will be to discuss the effect European exploration and trade had on Native groups of people
Premium Native Americans in the United States United States North America
Class : 10 A Due date : 30 August 2010 Teacher : Ms. Merliani “How do chemical elements effect the environment” (1.236 words) Atmospheric pollution Most of the people live within the major cities where the evidence of pollution in the atmosphere can almost be seen daily. Your Task You will need to write an essay (700-1200 words) or prepare a presentation using the following guidelines. • How are chemist addressing the problem of athmospheric pollution? • Describe
Premium Air pollution
How does globalization affect European Welfare States? Introduction The effect that the process of globalization is having on the European welfare states has been the subject of much debate. The source of this debate lies in the fact that there has been a positive correlation between economic openness and the size of the welfare state in European countries. This directly contradicts liberal economic theory that increased economic openness will require the retrenchment of the welfare state in
Premium Unemployment Tax Economics
The foreign exchange market (forex‚ FX‚ or currency market) is a global decentralized market for the trading of currencies. The main participants in this market are the larger international banks. Financial centers around the world function as anchors of trading between a wide range of different types of buyers and sellers around the clock‚ with the exception of weekends. EBS and Reuters’ dealing 3000 are two main interbank FX trading platforms. The foreign exchange market determines the relative
Premium Foreign exchange market
geographical knowledge and technology. It was also a time of European migration to other parts of the world. This Age of Expansion and European exploration from 1450 to 1525‚ greatly promoted by economical‚ technological‚ political‚ and religious factors‚ launched a major turning point in world history. The economy of late fifteenth century played an important role in European conquest. The Ottoman capture of Constantinople in 1453 caused Europeans to turn to sub-Saharan Africa to supply their demand
Premium Spain Portugal Age of Discovery
Bill of exchange A bill of exchange or "draft" is a written order by the drawer to the drawee to pay money to the payee. A common type of bill of exchange is the cheque (check in American English)‚ defined as a bill of exchange drawn on a banker and payable on demand. Bills of exchange are used primarily in international trade‚ and are written orders by one person to his bank to pay the bearer a specific sum on a specific date. Prior to the advent of paper currency‚ bills of exchange were a common
Free Money Cheque
Basic Elements The uncontested facts are few. Cleitus is introduced quite differently in various accounts as: Cleitus‚ Clitus‚ Kleitos‚ Cleitus the Black‚ and Cleitus son of Dropides. In most accounts however‚ the event is at Samarcand/Maracanda and the cause for the excessive drinking is the feast of the twins Castor and Pollux (Gemini). It is certain Cleitus and Alexander began to throw insults at one another. At some point‚ a poem is sarcastically recited about the Macedonian generals
Premium Middle Ages Aristotle Philosophy
Recent Recession and How It Has Affected Our Economy We all realize that we are currently in a recession and times are tough. Almost everyone I know has been affected by this recession in some way‚ including my family. Due to this assignment‚ I have found myself asking this question: how has the recession affected my family and the community? Everyone that I spoke with had strong and emotional answers to this question. This past year has been very hard for my family. Both my husband and I where
Premium Subprime mortgage crisis Economics Mortgage loan
The factors which affect student achievements in the exchange program are threefold. Student’s personality‚ communication skills and financial back up do influence their achievements. First‚ the personality of the students plays the most important role. In order to study and live abroad‚ students should be independent‚ friendly and are good team players. Besides taking care of themselves well‚ they should have good self-discipline to behave properly and achieve satisfactory academic results. Having
Premium Learning University Problem solving